## Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

$0.4$
Recall the logarithmic property: $a^{ \log_a (x)} =x$ We wish to simplify $2^{ \log_2 (0.4)}$ Applying the property above gives: $2^{ \log_2 (0.4)} =0.4$